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• Eclipse CDT: Import source / header files into my new project, without duplicating them

  - by Tom

  Hi all, Im sure there is a very simple solution for this. I have a bunch of .cpp / .h files from a project, say in directory ~/files On the other hand, I want to create a c++ project using eclipse to work on those files, so I put my workspace on ~/wherever. Then I create a c++ project: ~/wherever/project, and include the source files (located in /~files). The problem i'm having is that files are now duplicated in ~/wherever/project, and I would like to avoid that, specially so I know which copy of the file to commit. Is this possible? Im sure it is, but cant get it. Thanks in advance.

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• Setting data source for reports in Crystal Reports 2008 Java (performance)

  - by Daniel

  Hi, we have Crystal Reports 2008 on the server, and use the Java SDK to display reports and convert them to PDF. Since the server hat its own database, we have to set the data source on the DatabaseController to make CR connect to this database. We do it like specified in the docs, and tried the functions in CRJavaHelper, but for a reason unknown to me setting the connection string takes 300ms to 1500ms. What is the fastest way to tell Crystal which datasource to use in its reports? I already saw a JNDI name somewhere, but i don't believe CR actually does a JNDI lookup to find an existing datasource, doesn't it?

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• Removing the contents of a Chan or MVar in a single discrete step

  - by Bill

  I'm writing a discrete simulation where request values from multiple threads accumulate in a centralized queue. Every n milliseconds, a manager wakes up to process requests. When the manager wakes up, it should retrieve all of the contents of the central queue in a single discrete step. While processing these, any client threads attempting to submit to the queue should block. When processing completes, the queue reopens and the manager goes back to sleep. What's the best way to do this? The retry behavior of STM isn't really what I want. If I use a Chan or MVar, there's no way to prevent clients from enqueuing additional requests during processing. One approach is to use an MVar as a mutex on a Chan holding the queue. Are there other ways to do this?

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• Rotation of a single UIViewController in a UITabBarController

  - by burki

  Hi! I have a UITabBarController with four UINavigationControllers. Well, I want to enable the rotation just for one of the four UIViewControllers. According to Apple's doc you shouldn't subclass UITabBarController, so I don't wanna do that. All UIViewControllers should support the same orientations that it works, but that's not what I want. How can the single UIViewController, which should support the rotation, detect that the device has changed its orientation? Because unless all the UIViewControllers added to the UITabBarControllers support the same orientation, the methods of the UIViewController for managing the rotation aren't called. I've been searching now for a while, but I haven't already found a pleasant answer. I guess a lot of developers wonder how to manage that. I already thank you for your answer.

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• web based open source FTP

  - by kwek-kwek

  I need help on looking for a best solution of a web based open source FTP client that has a progress bar, e-mail notifications and easy file sharing with others. I am looking to set up one for our print department, and you send it is really getting expensive. I've look into net2ftp.com but styling it, is a bit pain in the bumbum....Also, Uploadify is also an option but with my lack of PHP knowledge I can't make it to actually do what I want it to do. Let me know if you have buymp into and interesting tool like it.

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• "svn: Delta source ended unexpectedly" and proxy server

  - by Vladimir Bezugliy

  I cannot checkout working copy if I use proxy server. SVN starting to checkout files but, checkout several files but then stops and shows following error: svn: Delta source ended unexpectedly I can checkout working copy if I work without proxy server. But I constantly have problems if I work via proxy. Is this problem with proxy server or with svn? UPDATED: I tried to access other svn repositories located on different servers via proxy and it seems to me that I have problem only with one svn server. Other svn servers are accessible via proxy server.

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• Open source alternative to WebEx WebOffice?

  - by Dieseltime

  I have a client who has been using WebOffice (from WebEx) for a variety of tasks within their small organization. The problem is that they only really need a small subset of the features WebOffice provides (Contact list, Database, and Document Storage). They've asked me to develop a website focused on these three features with the rationalization that this should be more cost-effective, since they currently aren't using many of the features of WebOffice they pay for. What are some open-source alternatives that I could implement for them? Sharepoint sounds like it would be too bloated and Google Apps may not be as collaborative as they would like.

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• C# How to set source path of image within html pages to show in webbrowser control

  - by Royson

  Hi in my application there is web browser control to show some static html pages. The pages are displayed properly. but images are not displayed.. I tried with changing src-path but no success. my htmlpages folder is located at bin folder. And i am assigning it as. FileStream source = new FileStream(@"..\HtmlPages\supportHtml.html", FileMode.Open, FileAccess.Read); if i open html files in browser, the images are displayed properly.. So, What is the correct path for images..?? If i set full path to src attribute of <img> tag..it works. but i think its not a proper way. :(

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• C# How to set source path of image within html pages to show in webbrowser control

  - by Royson

  Hi in my application there is web browser control to show some static html pages. The pages are displayed properly. but images are not displayed.. I tried with changing src-path but no success. my html file is located at bin folder. And i am assigning it as. FileStream source = new FileStream(@"..\HtmlPages\supportHtml.html", FileMode.Open, FileAccess.Read); if i open html files in browser, the images are displayed properly.. So, What is the correct path for images..?? If i set full path to src attribute of <img> tag..it works. but i think its not a proper way. :(

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• E-Mails sent from online form are coming in one single mail

  - by HasanGursoy

  I'm using an online form at one of my web sites. Every mail sent from this form is coming in one mail even if the senders IP is different. But I want every single mail to be unique even if the content is same. What I need to do to the mails or which header I need to modify? SmtpClient smtpClient = new SmtpClient(); MailMessage message = new MailMessage(); MailAddress fromAddress = new MailAddress("[email protected]", "NoReply"); MailAddress toAddress = new MailAddress("[email protected]", "Info"); MailAddress toSender = new MailAddress(tEMail.Text, tNameSurname.Text); message.From = fromAddress; message.Bcc.Add(toAddress); message.ReplyTo = toSender; message.Subject = tNameSurname.Text + " : contact"; message.IsBodyHtml = true; message.Body = "some html here"; smtpClient.Send(message);

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• Lock Free Queue -- Single Producer, Multiple Consumers

  - by Shirish

  Hello, I am looking for a method to implement lock-free queue data structure that supports single producer, and multiple consumers. I have looked at the classic method by Maged Michael and Michael Scott (1996) but their version uses linked lists. I would like an implementation that makes use of bounded circular buffer. Something that uses atomic variables? On a side note, I am not sure why these classic methods are designed for linked lists that require a lot of dynamic memory management. In a multi-threaded program, all memory management routines are serialized. Aren't we defeating the benefits of lock-free methods by using them in conjunction with dynamic data structures? I am trying to code this in C/C++ using pthread library on a Intel 64-bit architecture. Thank you, Shirish

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• Subsume external library into source tree with Autotools.

  - by troutwine

  I am developing a new project, using Autotools for my build infrastructure. I would like to subsume external dependencies into my source tree. These dependencies are using Autotools, as well. How can I configure my project's build scripts to build and link against subsumed dependencies? Though Duret-Lutz's tutorial is excellent, this situation is only briefly addressed in a few slides. I found his explanation deeply confusing. By adding the directory name of subsumed dependencies to the toplevel Makefile.am's SUBDIRS the dependency is being configured and built. It is possible to manually set include paths through CFLAGS, but how do I link against libtool .la files?

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• JSF : able to do mass update but unable to update a single row in a datatable

  - by nash

  I have a simple data object: Car. I am showing the properties of Car objects in a JSF datatable. If i display the properties using inputText tags, i am able to get the modified values in the managed bean. However i just want a single row editable. So have placed a edit button in a separate column and inputText and outputText for every property of Car. the edit button just toggles the rendering of inputText and outputText. Plus i placed a update button in a separate column which is used to save the updated values. However on clicking the update button, i still get the old values instead of the modified values. Here is the complete code: public class Car { int id; String brand; String color; public Car(int id, String brand, String color) { this.id = id; this.brand = brand; this.color = color; } //getters and setters of id, brand, color } Here is the managed bean: import java.util.ArrayList; import java.util.List; import javax.faces.bean.ManagedBean; import javax.faces.bean.RequestScoped; import javax.faces.component.UIData; @ManagedBean(name = "CarTree") @RequestScoped public class CarTree { int editableRowId; List<Car> carList; private UIData myTable; public CarTree() { carList = new ArrayList<Car>(); carList.add(new Car(1, "jaguar", "grey")); carList.add(new Car(2, "ferari", "red")); carList.add(new Car(3, "camri", "steel")); } public String update() { System.out.println("updating..."); //below statments print old values, was expecting modified values System.out.println("new car brand is:" + ((Car) myTable.getRowData()).brand); System.out.println("new car color is:" + ((Car) myTable.getRowData()).color); //how to get modified row values in this method?? return null; } public int getEditableRowId() { return editableRowId; } public void setEditableRowId(int editableRowId) { this.editableRowId = editableRowId; } public UIData getMyTable() { return myTable; } public void setMyTable(UIData myTable) { this.myTable = myTable; } public List<Car> getCars() { return carList; } public void setCars(List<Car> carList) { this.carList = carList; } } here is the JSF 2 page: <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core"> <h:head> <title>Facelet Title</title> </h:head> <h:body> <h:form id="carForm" prependId="false"> <h:dataTable id="dt" binding="#{CarTree.myTable}" value="#{CarTree.cars}" var="car" > <h:column> <h:outputText value="#{car.id}" /> </h:column> <h:column> <h:outputText value="#{car.brand}" rendered="#{CarTree.editableRowId != car.id}"/> <h:inputText value="#{car.brand}" rendered="#{CarTree.editableRowId == car.id}"/> </h:column> <h:column> <h:outputText value="#{car.color}" rendered="#{CarTree.editableRowId != car.id}"/> <h:inputText value="#{car.color}" rendered="#{CarTree.editableRowId == car.id}"/> </h:column> <h:column> <h:commandButton value="edit"> <f:setPropertyActionListener target="#{CarTree.editableRowId}" value="#{car.id}" /> </h:commandButton> </h:column> <h:column> <h:commandButton value="update" action="#{CarTree.update}"/> </h:column> </h:dataTable> </h:form> </h:body> </html> However if i just keep the inputText tags and remove the rendered attributes, i get the modified values in the update method. How can i get the modified values for the single row edit?

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• Nested ComboBox doesn't update source by selection.

  - by Shimmy

  Hello. I am using a ComboBox bound under a DataContext: <tk:DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <ComboBox ItemsSource="{Binding Source={StaticResource CategoriesCollection}" DisplayMemberPath="Title" SelectedItem="{Binding Category}" /> </DataTemplate> </tk:DataGridTemplateColumn.CellEditingTemplate> When the row is initiated the value of Category is null. Once I select the first value in the ComboBox it sets it up. But when I select another value, it doesn't get changed.

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• python: how to convert list of lists into a single nested list

  - by Bhuski

  I have a python list of lists as shown below: mylist=[ [['orphan1', ['some value1']]], [['parent1', ['child1', ['child', ['some value2']]]]], [['parent1', ['child2', ['child', ['some value3']]]]] ] I need to convert the above list to some thing like this: result=[ ['orphan1', ['some value1']], ['parent1', ['child1', ['child', ['some value2']]], ['child2', ['child', ['some value3']]]] ] Kindly help me approach this problem. I have given only simple list. In actual scenario here, in my list, even grand parents/grand childs are there. How much ever deep the input nested list is, I need to convert it to a single nested list, with common list elements (parents and grand parents) appearing only once. (but the next to innermost list element('child' in above example) should appear as many times it occurs in the input list. I have been trying to do this last two days, but did not end up with working solution :(. I need to use the output in django template filter: unordered_list so that the resultant nested list appears as a nested unordered list in my html page ..

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• Visual Studio Web Application edit source while running like in Tomcat\Eclipse\Java

  - by Bryan Migliorisi

  In an ASP.NET Web Site project, I've always been able to make changes to the underlying C# code and simply refresh the page in the browser and my changes would be there instantly. I can do the same thing when working with Java and Eclipse - edit my Java source and refresh the page and my changes are there. I cannot do this in ASP.NET MVC though and it is a real downer - I have to stop the running process and make my changes, and then restart debugging. This is a huge waste of time. Am I doing it wrong? What is the best approach to ASP.NET MVC development?

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• Asking facebook for data of multiple users in single request using FB.api

  - by gruszczy

  I need to get basic user data from Facebook using FB.api('/<some_id>/'). This works well, but is slow, since I need to ask for every id separately and make several calls to facebook. Is there any way to gather all ids and ask for them in single request and get an array? EDIT I am not asking for user friends. I am actually trying to gather friends' friends of a user and that's something Facebook doesn't provide, that's why I am using graph.facebook.com/<id>/ rather than graph.facebook.com/me/friends. I don't want friends, I'd like to do something like this: graph.facebook.com/<id1>,<id2>,<id3>,../

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• Rails - Multiple top level domains and a single session/cookie

  - by Thadius B

  Hello all, I've been struggling with this for quite awhile and haven't been able to find a solution. I need a user to be able to view multiple top level domains with a single login. My understanding is that this needs to be set in environment.rb and called with before_dispatch. This is what I've come up with: require 'activesupport' require 'dispatcher' module ActionController class Dispatcher def set_session_domain ActionController::Base.session_options.update :session_domain => "#{@request.host}" end before_dispatch :set_session_domain end end However, this does not seem to be working when I try and pull the values from session[:session_domain]. Any help is greatly appreciated.

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• Rendering to a single Bitmap object from multiple threads

  - by Lee Treveil

  What im doing is rendering a number of bitmaps to a single bitmap. There could be hundreds of images and the bitmap being rendered to could be over 1000x1000 pixels. Im hoping to speed up this process by using multiple threads but since the Bitmap object is not thread-safe it cant be rendered to directly concurrently. What im thinking is to split the large bitmap into sections per cpu, render them separately then join them back together at the end. I haven't done this yet incase you guys/girls have any better suggestions. Any ideas? Thanks

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• How do I get a single value from a stored proc using Nettiers

  - by Micah

  I have a really simple stored procedure that looks like this: CREATE PROCEDURE _Visitor_GetVisitorIDByVisitorGUID ( @VisitorGUID AS UNIQUEIDENTIFIER ) AS DECLARE @VisitorID AS bigint SELECT @VisitorID = VisitorID FROM dbo.Visitor WHERE VisitorGUID = @VisitorGUID --Here's what I've tried RETURN @VisitorID 'Returns an IDataReader SELECT @VisitorID 'Returns an IDataReader --I've also set it up wuth a single output --parameter, but that means I need to pass --the long in by ref and that's hideous to me I'm trying to get nettiers to generate a method with this signature: public long VisitorService.GetVisitorIDByVisitorGUID(GUID visitorGUID); Basically I want Nettiers to call ExecuteScalar instead of ExecuteReader. What am I doing wrong?

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• Installing a source control without admin rights

  - by Simon T.

  I'm forced to use SourceSafe at my job. There is no way this is going to change. I would like to use another source control for my own need in parallel. I want to be able to keep an history of my modifications, branch easily and merge. I can install any application that doesn't requires admin rights. I cannot install Python or anything that integrates in File Explorer. I'm not much of a command line guy so a GUI is a must. I managed to install Mercurial but not TortoiseHG. There is a chance msysgit would install but the GUI isn't very good. Any suggestions?

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• Rank Source Control Optionsl-VSS vs CVS vs none vs your own hell

  - by Roman A. Taycher

  It seems like a lit of people here and on many programmer wikis/blogs/ect. elsewhere really dislike VSS. A lot of people also have a serious dislike for cvs. In many places I have heard a lot of differing opinions on whether or not using vss or cvs is better or worse then using no source control, please rate the worst and explain why!!!!! you rated them this way. Feel free to throw in your own horrible system in the rankings. If you feel it depends on the circumstances try to explain the some of the different scenarios which lead to different rankings. (note:I see a lot of discussion of what is better but little of what is worse.) second note: while both answers are nice I'm looking less for good replacements and more for a comparison of which is worse and more importantly why!!!!!

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• Schemas and tables versus user-ids in a single table using PostgreSQL

  - by gvkv

  I'm developing a web app and I've come to a fork in the road with respect to database structure and I don't know which direction to take. I have a database with user information that I can structure one of two ways. The first is to create a schema and a set of tables for each user (duplicating the structure for each user) and the second is to create a single set of tables and query information based on user-id. Suppose 100000 users. Here are my questions: Considering security, performance, scalability and administration where does each choice lie? Would the answers change for 1000000 or 10000? Is there a set of best practices that lead to one choice or the other? It seems to me that multiple schemas are more secure since it's trivial to restrict user privileges but what about performance and scalability? Administration seems like a wash since dumping (and restoring) lots of schemas isn't any more difficult than dumping a few.

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• Choosing a source control system: logical next steps after VSS

  - by Dave

  I've been using Git for the past few months and love it. I looked into how to host it in a corporate environment. Considering a 10 person team who use Visual SourceSafe, programming in Coldfusion, Powerbuilder, PHP and a bit of .NET, I found, to my surprise, that the Git 'server' tooling is still fairly rudimentary. http://stackoverflow.com/questions/1761054/git-in-a-company-hosting-own-server Question Apart from SVN, what other source control options would be a logical next step after VSS? Paid options are fine. Something with nice tooling, that isn't scary would be great :-)

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• Querying a Single Column with LINQ

  - by Hossein Margani

  Hi Every one! I want to fetch array of values of a single column in a table, for example, I have a table named Customer(ID,Name), and want to fetch ids of all customers. my query in LINQ is: var ids = db.Customers.Select(c=>c.ID).ToList(); The answer of this query is correct, but I ran SQL Server Profiler, and saw the query which was like this: SELECT [t0].[ID], [t0].[Name] FROM [dbo].[Customer] AS [t0] I understood that LINQ selects all columns and then creates the integer array of ID fields. How can I write a LINQ query which generates this query in SQL Server: SELECT [t0].[ID] FROM [dbo].[Customer] AS [t0] Thank you.

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